64011694583616 has 112 divisors (see below), whose sum is σ = 182395903497024. Its totient is φ = 19695516512256.

The previous prime is 64011694583611. The next prime is 64011694583633. The reversal of 64011694583616 is 61638549611046.

It is a super-2 number, since 2×64011694583616² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64011694583616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64011694583611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141954540 + ... + 142404756.

It is an arithmetic number, because the mean of its divisors is an integer number (1628534852652).

Almost surely, 2^{64011694583616} is an apocalyptic number.

It is an amenable number.

64011694583616 is an abundant number, since it is smaller than the sum of its proper divisors (118384208913408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64011694583616 is a wasteful number, since it uses less digits than its factorization.

64011694583616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507208 (or 507198 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 64011694583616 in words is "sixty-four trillion, eleven billion, six hundred ninety-four million, five hundred eighty-three thousand, six hundred sixteen".